Allegro Constraint Compiler User Guide
Allegro Constraint Compiler
October 2019 19 Product Version 17.4-2019
© 1999-2019 All Rights Reserved.
Column Header Description
Net Selection
The Nets or Signals column entries are limited to XNet/Net objects, which can be selected in
the design using explicit net names or with a partial net name and a number range specified
within curly brackets {n-n}. For more complex net name selection regular expressions are also
supported and if the net name contains a square bracket, then a forward slash "\" can be used
to treat it like a regular character. If selecting all XNet/net members for group assignment,
which are already members of a different type of group (Net Class, Net Groups, Differential
Pairs), then the existing group gets added to the newly created group. For example,
■ Selecting all members of a Net Group to create a Net Class, the Net Group object gets
added to the Net Class
■ Select both members of a Differential Pair for addition to a Net Class, the Differential Pair
object gets added to the Net Class
Objects created by the compiler are labeled with an 'A' indicated as auto-generated objects
in Constraint Manager.
